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PUBLIC HEALTH ASSESSMENT

TUCSON INTERNATIONAL AIRPORT AREA
TUCSON, PIMA COUNTY, ARIZONA
EPA FACILITY ID: AZD980737530

November 13, 2000

Prepared by:

Arizona Department of Health Services
Office of Environmental Health
Environmental Health Consultation Services
Under Cooperative Agreement with the
Agency for Toxic Substances and Disease Registry


TABLE OF CONTENTS

EXECUTIVE SUMMARY

1.0 BACKGROUND

2.0 COMMUNITY HEALTH CONCERNS

3.0 ENVIRONMENTAL CONTAMINATION AND OTHER HAZARDS

4.0 PATHWAY ANALYSES

5.0 PUBLIC HEALTH IMPLICATIONS

CONCLUSIONS

RECOMMENDATIONS

PUBLIC HEALTH ACTION PLAN

PREPARERS OF REPORT

REFERENCES

CERTIFICATION

TABLES

Table 1: Maximum Contaminant Concentrations of the 12 Private Drinking Wells and
Comparison to Corresponding Maximum Contaminant Levels (MCLs)

Table 2: Maximum Contaminant Concentrations of the 7 Private Irrigation Wells and
Comparison to Corresponding MCLs

Table 3: Summary of the Maximum Contaminant Concentrations of Trichloroethylene
(TCE) and Chromium, and Comparison to Corresponding MCLs

Table 4: Summary of Complete Current Exposure Pathways

Table 5: Summary of Future Potential Exposure Pathways

Table 6: Comparison of TCE Concentrations to the Health-based Guidance Levels
(HBGLs)

APPENDIX

Figure 1: Location map of the Tucson International Airport Superfund Site

Figure 2: Location of Larger Plume A and Smaller Plume B

Figure 3: Close-up Map of Plume B

Figure 4: Results of 1994 and 1998 Private Well Studies Conducted by Pima County
Department of Environmental Quality

Table A1: Results of Calculations for the Flood Irrigation Scenarios

Table A2-A19: Equations for Exposure Calculations for the Flood Irrigation Scenarios

ATSDR Review of Eight TIAA Health Studies Related to Trichloroethylene (TCE)
Contamination

ADHS Toxicological Profile for TCE


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